Phillips Service Industries Inc. (PSI), a privately held global manufacturing and services holding company, has announced the death of its founder and chairman of the board, William T. (Bill) Phillips.

Phillips launched PSI Hydraulics in Detroit in 1967; the two-man operation initially focused on servo valve repairs. He received his hydraulic systems training working on B-25 bomber aircraft while serving two stints in the U.S. Air Force during the Korean War. Over the next three decades, Phillips expanded the business to include repair and remanufacturing services for electronics and
precision mechanical assemblies, as well as other hydraulic components. The company was renamed PSI Repair Services Inc. and relocated to Livonia, Mich., where it remains today.